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Virtual Private Networking Using IPSec and L2TP Connections
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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
Traffic Selection
Local IP From the drop-down list, select the address or addresses that are part of the
VPN tunnel on the VPN firewall:
• Any. Al
l computers and devices on the network. Note that you cannot select
Any for both the VPN firewall and the remote endpoint.
• Single. A
single IP address on the network. Enter the IP address in the Start
IP Address field.
• Range. A
range of IP addresses on the network. Enter the starting IP address
in the Start IP Address field and the ending IP address in the End IP Address
field.
• Subnet. A sub
net on the network. Enter the starting IP address in the Start IP
Address field. In addition:
- Su
bnet Mask. For IPv4 addresses on the IPv4 screen only, enter the
subnet mask.
- IPv
6 Prefix Length. For IPv6 addresses on the IPv6 screen only, enter the
prefix length.
Remote IP From the drop-down list, select the address or
addresses that are part of the
VPN tunnel on the remote endpoint. The selections are the same as for the
Local IP drop-down list.
Manual Policy Parameters
Note: These fields apply only when you select Manual Poli
cy as the policy type. When you specify the
settings for the fields in this section, a security association (SA) is created.
SPI-Incoming The Security Parameters Index (SPI) for the inbound policy. Enter a
hexa
decimal value between 3 and 8 characters (for example, 0x1234).
Encryption Algorithm From the drop-down list, select one of the
following five algorithms to negotiate
the security association (SA):
• 3DES. T
riple DES. This is the default algorithm.
• None. No encryption algorithm.
• DES. Dat
a Encryption Standard (DES).
• AES-128.
Advanced Encryption Standard (AES) with a 128-bit key size.
• AES-192. AES with a 192-bit key size.
• AES-256. AES with a
256-bit key size.
Key-In The encryption key for the inbound policy. The length of the key depends on the
selected encryption algorithm:
• 3DES.
Enter 24 characters.
• None. Key
does not apply.
• DES.
Enter 8 characters.
• AES-128.
Enter 16 characters.
• AES-192.
Enter 24 characters.
• AES-256.
Enter 32 characters.
Table 55. Add New VPN Policy screen settings for IPv4 and IPv6 (continued)
Setting Description